An isolated viral load test may generate false positive results for people using long-acting PrEP Analysis from large NIH study offers new insight on clinical utility of current U.S. testing algorithm.

https://www.nih.gov/news-events/news-releases/isolated-viral-load-test-may-generate-false-positive-results-people-using-long-acting-prep A single laboratory-based HIV viral load test used by U.S. clinicians who provide people with long-acting, injectable cabotegravir (CAB-LA) HIV pre-exposure prophylaxis (PrEP) did not reliably detect HIV in a multi-country study.